Incident Library

API · MCP 한국어

API and MCP kubegap Corrections and proposals

Incident Library

API · MCP 한국어

Symptom

Credentials unavailable

자격 증명 획득 실패 · credentials-unavailable

5 cases · 2019 to 2026

Root cause Certificate or credential expiry2 Capacity exhaustion1 Dependency failure1 Software defect1

Component Credential broker for pods2 Kubernetes API server2 Node pool2 CI system1

Contributing factor Single point of failure3 Automation amplification1 Excessive blast radius1 Unreviewed defaults1

Organisation Amazon Web Services1 Linode1 Target1 Webhook Relay1 Zalando

Cases

IL-0158 An expired credential caused authentication failures that stopped LKE and LKE-E from deploying clusters and nodes in all regions, which also blocked node recycling and cluster autoscalingLinode · 2026
Root cause Certificate or credential expiry
IL-0151 A latent defect in the AWS Lambda Frontend, set off when one us-east-1 cell scaled past a size never reached before, raised errors for Lambda and for services that depend on it, including new EKS cluster provisioningAmazon Web Services · 2023
Root cause Software defect

View on the graph

Container runtime1

GKE control plane1

RBAC and service accounts1

Serverless function platform1

Service discovery1

Telemetry agent1

Unpatched known bug1

Limited debug access1

1

IL-0113 The managed GKE control plane of Webhook Relay's main cluster failed because its API server certificates had never been rotated, and a manual credential rotation reported success without taking effect

Webhook Relay · 2022

Root cause Certificate or credential expiry

IL-0002 CI builder pods could not get AWS IAM credentials because kubelet fell minutes behind its API rate limitZalando · 2019

Root cause Capacity exhaustion

IL-0073 Intermittent Kafka connectivity overloaded Docker daemons, set off a node rescheduling cascade and poisoned the Consul gossip meshTarget · 2019 · sev1

Root cause Dependency failure